<template>
  <div class="shopcart">
    <ul>
      <li v-for="item in shopcart" :key="item.id">
        <img :src="item.src" alt="">
        <div>
          <p>{{item.title}}x{{item.num}}</p>
          <p>￥{{item.price}}</p>
          <p><button @click="del(item)">删除</button></p>
        </div>
      </li>
    </ul>
    <p v-if="shopcart.length">总价:{{totalPrice}}</p>
    <p v-else>购物车为空</p>
  </div>
</template>

<script>
import {mapState,mapGetters} from 'vuex'
export default {
	name: 'shopcart',
	// vuex提供了mapState辅助函数,可以简化computed计算属性的写法
	// computed:{
	// 	shopcart(){
	// 		return this.$store.state.shopcart
	// 	},
	// 	totalPrice(){
	// 		return this.$store.getters.totalPrice
	// 	}
	// }	
	computed:{
		...mapState(['shopcart']),
		...mapGetters(['totalPrice'])
	},
	methods:{
		del(item){
			this.$store.commit('del',item)
		}
	}
}
</script>
<style scoped>
	.shopcart{
		width: 100%;
		padding-bottom: 50px;
	}
	li{
		position: relative;
		border-bottom: 1px dashed #CCCCCC;
	}
	li div{
		display: inline-block;
		position: absolute;
		top: 10px;
		width: 120px;
		line-height: 30px;
		font-size: 14px;
	}
	img{
		width: 100px;
		border: 1px solid #ccc;
		margin: 10px 10px 8px 10px;
	}
	li div p:nth-child(2){
		color: #f00;
	}
	button{
		color: white;
		background-color:coral;
		border: 0;
		padding: 0.3125rem;
	}
</style>
